#64591B#64591B

#64591B is a mid, moderate yellow. Relative luminance 0.099; OKLCH L 46.2% C 0.082 H 99.0°. Best body text is #FFFFFF at 7.03:1 contrast (WCAG AA passes).

Color values

HEX	#64591B
RGB	rgb(100, 89, 27)
HSL	hsl(51, 57%, 25%)
HSV	hsv(51, 73%, 39%)
CMYK	cmyk(0%, 11%, 73%, 60.8%)
CIE-LAB	lab(37.72, -3.45, 35.94)
CIE-LCH	lch(37.72, 36.11, 95.48°)
OKLab	oklab(46.2% -0.0128 0.0806)
OKLCH	oklch(46.2% 0.082 99)
XYZ	xyz(9.0261, 9.9336, 2.4786)
Luminance	0.0993 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#64591B #1B2664

analogous

#64351B #64591B #4A641B

triadic

#64591B #1B6459 #591B64

tetradic

#64591B #1B6435 #1B2664 #641B4A

square

#64591B #1B6435 #1B2664 #641B4A

split-complementary

#64591B #1B4A64 #351B64

monochromatic

#181507 #342E0E #64591B #948428 #C4AF35

Accessibility & contrast

On white

7.03

#64591B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#64591B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #64591B

7.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##64591B	#FFFFFF	#000000	##FFFFFF
##64591B	1.00	7.03	2.99	7.03
#FFFFFF	7.03	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625712

Deuteranopia (green-blind)

#655A1F

Tritanopia (blue-blind)

#6C524C

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #64591b;
/* rgb */ color: rgb(100, 89, 27);
/* oklch */ color: oklch(46.2% 0.082 99.0);

Tailwind

colors: {
  custom: {
    50: '#93875b',
    500: '#64591b',
    950: '#000000',
  },
}

SCSS

$custom: #64591b;
$custom-light: #93875b;
$custom-dark: #000000;

JSON

{
  "hex": "#64591b",
  "rgb": {
    "r": 100,
    "g": 89,
    "b": 27
  },
  "hsl": {
    "h": 50.959,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.46197,
    "c": 0.08156,
    "h": 99
  },
  "luminance": 0.09933
}

Semantic roles & 50–950 ramp

primary

#64591B

secondary

#414F99

accent

#5EE147

background

#F9F8F5

surface

#F2EFE9

border

#CCCAC5

text

#0D0B04

muted

#7E7C79

Preview Lab

Preview with #64591B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →